Paulina Pinedo-Gonzalez¹, Nicholas Hawco², Randelle M Bundy³, Virginia Armbrust³, Michael J Follows⁴, B. B. Cael⁵, Angelicque E White⁵, Sara Ferrón⁵, David M Karl⁵ and Seth John⁶, (1)Lamont -Doherty Earth Observatory, Geochemistry, Palisades, NY, United States, (2)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (3)University of Washington, School of Oceanography, Seattle, WA, United States, (4)Massachusetts Institute of Technology, Cambridge, MA, United States, (5)University of Hawaii, Department of Oceanography, Honolulu, HI, United States, (6)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States